header{background-image:url("../images/award/wanyuan6_01.png");background-size:100% 100%;}

@media screen and (min-width: 1366px) {header{height:256px;}}
@media screen and (min-width: 1440px) {header{height:270px;}}
@media screen and (min-width: 1680px) {header{height:315px;}}
@media screen and (min-width: 1920px) {header{height:360px;}}